An independent drive assembly and drive method for a straightening roll of a roller straightening machine

Abstract

The present invention discloses a straightening roll independent drive assembly and a drive method for a roller straightening machine, which includes an upper roll system (1), a lower roll system (2), a universal coupling (4), a gear distribution box (5), a coaxial speed reducer (6) and a speed regulating motor (7). The upper roll system (1) and the lower roll system (2) both include a plurality of straightening rolls. The plurality of straightening rolls of the upper roll system (1) and the lower roll system (2) are respectively connected to one end of a plurality of universal couplings (4) in one-to-one correspondence. The other ends of the plurality of universal couplings (4) are respectively connected to the output end of the gear distribution box (5). The input end of the gear distribution box (5) is connected to a plurality of coaxial speed reducers (6). The input ends of the plurality of coaxial speed reducers (6) are respectively connected to a plurality of speed regulating motors (7). The number of the coaxial speed reducers (6) and the speed regulating motors (7) is the same as the number of the universal couplings (4).

Description

Technical Field

[0001] The present invention belongs to the technical field of the drive of the leveling rolls of a leveling machine, and particularly relates to the drive technology of a roller leveling machine used in finishing and tempering units in a steel plate production workshop of a steel plant in the steel field, and more particularly to an independent drive assembly and a drive method for the leveling rolls of a roller leveling machine. Background Art

[0002] In finishing, tempering, pickling, and acid rolling units in a steel plate production workshop of a steel plant in the steel field, a roller leveling machine is often used to improve the shape quality of products or enable raw materials to smoothly enter the next process. The prior art usually adopts a collective drive method, that is, a speed-regulating motor drives a reduction gearbox, and then the output shaft of the reduction gearbox drives a gear distribution box, and the output shaft of this gear distribution box drives the working rolls of the leveling machine. The disadvantages of this method are as follows: 1) It cannot overcome the negative torque generated during the leveling process; 2) It has high requirements for the diameter size of the leveling rolls; 3) The leveling process generates a large amount of noise; 4) It wastes energy. In the current highly competitive market environment, the traditional drive method obviously cannot meet the requirements. The technology of the present invention can solve the above disadvantages and meet the market demand. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide an independent drive assembly and a drive method for the leveling rolls of a roller leveling machine, which overcome the following problems in the prior art: 1) The existing collective drive method cannot overcome the negative torque generated during the leveling process; 2) It has high requirements for the diameter size of the leveling rolls; 3) The leveling process generates a large amount of noise and wastes energy.

[0004] To solve the technical problems, the technical solution of the present invention is: an independent drive assembly for the leveling rolls of a roller leveling machine, including an upper roll system, a lower roll system, a universal coupling, a gear distribution box, a coaxial reduction gearbox, and a speed-regulating motor. Both the upper roll system and the lower roll system include a plurality of leveling rolls. One end of each of the plurality of leveling rolls in the upper roll system and the lower roll system is respectively connected to one end of a plurality of universal couplings. The other ends of the plurality of universal couplings are respectively connected to the output end of the gear distribution box. The input end of the gear distribution box is connected to a plurality of coaxial reduction gearboxes. The input ends of the plurality of coaxial reduction gearboxes are respectively connected to a plurality of speed-regulating motors. The number of the coaxial reduction gearboxes and the speed-regulating motors is the same as the number of the universal couplings.

[0005] Preferably, the upper roll system includes a first straightening roll, a third straightening roll, a fifth straightening roll, a seventh straightening roll, and a ninth straightening roll. The first straightening roll, the third straightening roll, the fifth straightening roll, the seventh straightening roll, and the ninth straightening roll are on the same straight line. The lower roll system includes a second straightening roll, a fourth straightening roll, a sixth straightening roll, an eighth straightening roll, a tenth straightening roll, and an eleventh straightening roll. The second straightening roll, the fourth straightening roll, the sixth straightening roll, the eighth straightening roll, the tenth straightening roll, and the eleventh straightening roll are on the same straight line. The straight lines where the two groups of straightening rolls of the upper roll system and the lower roll system are located are parallel. The output end of the gear distribution box is connected to the first straightening roll, the second straightening roll, the third straightening roll, the fourth straightening roll, the fifth straightening roll, the sixth straightening roll, the seventh straightening roll, the eighth straightening roll, the ninth straightening roll, the tenth straightening roll, and the eleventh straightening roll by eleven universal couplings in one-to-one correspondence. The input end of the gear distribution box is connected to eleven speed-regulating motors through eleven coaxial speed reducers.

[0006] Preferably, the end of the speed-regulating motor with a flange is connected to the input end of the coaxial speed reducer with flanges at both ends by bolts and keys. The output end of the coaxial speed reducer is connected to the input flange of the gear distribution box by bolts and keys. The two ends of the universal coupling are respectively connected to the output end of the gear distribution box and the input end of the straightening roll through splines.

[0007] Preferably, the speed-regulating motors include a first speed-regulating motor, a second speed-regulating motor, a third speed-regulating motor, a fourth speed-regulating motor, a fifth speed-regulating motor, a sixth speed-regulating motor, a seventh speed-regulating motor, an eighth speed-regulating motor, a ninth speed-regulating motor, a tenth speed-regulating motor, and an eleventh speed-regulating motor. The coaxial speed reducers include a first coaxial speed reducer, a second coaxial speed reducer, a third coaxial speed reducer, a fourth coaxial speed reducer, a fifth coaxial speed reducer, a sixth coaxial speed reducer, a seventh coaxial speed reducer, an eighth coaxial speed reducer, a ninth coaxial speed reducer, a tenth coaxial speed reducer, and an eleventh coaxial speed reducer. One end of the first speed-regulating motor with a flange is connected to the first coaxial speed reducer with flanges at both ends by bolts and keys. One end of the second speed-regulating motor with a flange is connected to the second coaxial speed reducer with flanges at both ends by bolts and keys. One end of the third speed-regulating motor with a flange is connected to the third coaxial speed reducer with flanges at both ends by bolts and keys. One end of the fourth speed-regulating motor with a flange is connected to the fourth coaxial speed reducer with flanges at both ends by bolts and keys. One end of the fifth speed-regulating motor with a flange is connected to the fifth coaxial speed reducer with flanges at both ends by bolts and keys. One end of the sixth speed-regulating motor with a flange is connected to the sixth coaxial speed reducer with flanges at both ends by bolts and keys. One end of the seventh speed-regulating motor with a flange is connected to the seventh coaxial speed reducer with flanges at both ends by bolts and keys. One end of the eighth speed-regulating motor with a flange is connected to the eighth coaxial speed reducer with flanges at both ends by bolts and keys. One end of the ninth speed-regulating motor with a flange is connected to the ninth coaxial speed reducer with flanges at both ends by bolts and keys. One end of the tenth speed-regulating motor with a flange is connected to the tenth coaxial speed reducer with flanges at both ends by bolts and keys. One end of the eleventh speed-regulating motor with a flange is connected to the eleventh coaxial speed reducer with flanges at both ends by bolts and keys.

[0008] Preferably, the fourth speed-regulating motor / the fifth speed-regulating motor / the tenth speed-regulating motor are respectively connected to the fourth coaxial speed reducer / the fifth coaxial speed reducer / the tenth coaxial speed reducer and then connected to the corresponding universal couplings through a gear shaft in the gear distribution box. The other ends of the corresponding universal couplings are respectively connected to the fourth leveling roll, the fifth leveling roll, and the tenth leveling roll. The fourth coaxial speed reducer / the fifth coaxial speed reducer / the tenth coaxial speed reducer are respectively coaxially connected to one end of the gear shaft, and the other end of the gear shaft is coaxially connected to the universal coupling.

[0009] Preferably, the first speed-regulating motor / second speed-regulating motor / ninth speed-regulating motor / eleventh speed-regulating motor are respectively connected to the first coaxial reducer / second coaxial reducer / ninth coaxial reducer / eleventh coaxial reducer, and the torque is transmitted to the corresponding universal coupling indirectly through the linkage of two gear shafts. The other ends of the corresponding universal couplings are respectively connected to the first straightening roll, second straightening roll, ninth straightening roll and eleventh straightening roll. The first coaxial reducer / second coaxial reducer / ninth coaxial reducer / eleventh coaxial reducer are respectively coaxially connected to a gear shaft. One end of this gear shaft meshes with one end of another gear shaft, and the other end of the other gear shaft is coaxially connected to the universal coupling.

[0010] Preferably, the third speed-regulating motor / sixth speed-regulating motor / seventh speed-regulating motor / eighth speed-regulating motor are respectively connected to the third coaxial reducer / sixth coaxial reducer / seventh coaxial reducer / eighth coaxial reducer, and the torque is transmitted to the corresponding universal coupling indirectly through the linkage of three gear shafts. The other ends of the corresponding universal couplings are respectively connected to the third straightening roll, sixth straightening roll, seventh straightening roll and eighth straightening roll. The third coaxial reducer / sixth coaxial reducer / seventh coaxial reducer / eighth coaxial reducer are respectively coaxially connected to a gear shaft. One end of this gear shaft meshes with the other two gear shafts in sequence, and the other end of the third gear shaft is coaxially connected to the universal coupling.

[0011] Preferably, the first coaxial reducer, second coaxial reducer, third coaxial reducer, fourth coaxial reducer, fifth coaxial reducer, sixth coaxial reducer, seventh coaxial reducer, eighth coaxial reducer, ninth coaxial reducer, tenth coaxial reducer and eleventh coaxial reducer transmit the torque to the universal coupling through the gear shaft respectively to drive each straightening roll. The 5 universal couplings connected by the gear shaft of the first coaxial reducer, third coaxial reducer, fifth coaxial reducer, seventh coaxial reducer and ninth coaxial reducer are on the same straight line. The 6 universal couplings connected by the gear shaft of the second coaxial reducer, fourth coaxial reducer, sixth coaxial reducer, eighth coaxial reducer, tenth coaxial reducer and eleventh coaxial reducer are on the same straight line. The two groups of universal couplings on the same straight line are parallel.

[0012] Preferably, a high-pulse incremental encoder is provided on the speed-regulating motor for accurately measuring the rotational speed of the straightening roll.

[0013] Preferably, a straightening roll independent drive assembly and drive method of the roll-type straightening machine as described in any one of the above includes the following steps:

[0014] Step 1) Connect one end of eleven universal couplings to eleven straightening rollers. The other ends of the eleven universal couplings are respectively connected to the output ends of a gear distribution box. The input end of the gear distribution box is connected to eleven coaxial speed reducers. The input ends of the eleven coaxial speed reducers are respectively connected to eleven speed regulating motors. The eleven speed regulating motors are independently connected to the eleven straightening rollers respectively, and the rotational speed of each straightening roller can be independently adjusted;

[0015] Step 2) Place the strip steel between the upper roll system and the lower roll system. The upper roll system and the lower roll system drag the strip steel through the roll gaps formed by the eleven straightening rollers in sequence, which will significantly improve the strip shape and fully release the internal residual stress. The thickness of the strip steel is 3.0 mm to 25 mm;

[0016] Step 3) When the strip steel is stretched, the actual rotational speeds required by each straightening roller are different. By adjusting the different rotational speeds of the straightening rollers through the speed regulating motors, the influence of negative torque is eliminated;

[0017] Step 4) When the diameter of the straightening roller becomes smaller due to wear, the rotational speed of the speed regulating motor can be adjusted to perform individual adjustment of the worn straightening roller.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] (1) The present invention includes an upper roll system, a lower roll system, universal couplings, a gear distribution box, coaxial speed reducers, and speed regulating motors. The upper roll system and the lower roll system both include multiple straightening rollers. The multiple straightening rollers of the upper roll system and the lower roll system are respectively and correspondingly connected to one end of multiple universal couplings. The other ends of the multiple universal couplings are respectively connected to the output ends of the gear distribution box. The input end of the gear distribution box is connected to multiple coaxial speed reducers. The input ends of the multiple coaxial speed reducers are respectively connected to multiple speed regulating motors. The number of coaxial speed reducers and speed regulating motors is the same as the number of universal couplings. The present invention consists of speed regulating motors, coaxial speed reducers, and universal couplings with the same number as the straightening rollers, and one gear distribution box. Each straightening roller is independently driven by an independent speed regulating motor through a coaxial speed reducer and a gear distribution box. The rotational speed of each straightening roller can be independently adjusted, and the rotational speeds can be the same or different. It can realize the adjustment of different rotational speeds of the straightening rollers, thereby eliminating the influence of negative torque. Since the strip steel will be stretched along its running direction during straightening, this requires the rotational speed of the straightening rollers to gradually increase from the inlet to the outlet. If the rotational speed of the straightening rollers remains constant, a negative torque will be generated at the stretched part of the strip steel, that is, when the strip steel is stretched, the rotational speed of the straightening rollers needs to be increased, while the actual rotational speed of the straightening rollers remains unchanged, resulting in the straightening rollers being subjected to such a negative torque. The negative torque will cause disadvantages such as loud noise during the straightening process, waste of energy, and scratching of the strip steel surface. However, the independent drive of the present invention can overcome this disadvantage, eliminate the influence of negative torque by adjusting the different rotational speeds of the straightening rollers, and has low noise, no waste of energy, and does not scratch the strip steel surface;

[0020] (2) The speed-regulating motor and the coaxial reducer of the present invention are directly or indirectly installed on the gear distribution box, with a compact structure and space saving; there are three torque transmission forms of the gear distribution box of the present invention: direct transmission, indirect transmission through two gear shafts, and indirect transmission through three gear shafts. In this way, the universal couplings connected to the upper roll system are on the same straight line, the universal couplings connected to the lower roll system are on the same straight line, and the two straight lines are parallel; when the diameter of the leveling roll becomes smaller due to wear, the speed of the motor can be adjusted to individually adjust the worn leveling roll. The speed-regulating motors of the present invention are all equipped with high-pulse incremental encoders for accurately measuring the speed of the leveling roll.

[0021] (3) The present invention uses a gear distribution box as a transition to connect the universal coupling, the coaxial reducer and the motor one by one, truly realizing that one motor drives one leveling roll. The advantages of this design are compact structure, space saving, easy layout, meeting the requirements of independent drive and saving space;

[0022] (4) The present invention reduces the requirements for the diameter size of the leveling roll, thereby reducing the number of spare parts. If it is a collective drive, the diameter of the leveling roll should be controlled within a certain tolerance range. After some working rolls are used for a period of time, the diameter tolerance exceeds the range and they cannot be used and can only be scrapped. The independent drive of the present invention can independently adjust the speed of the leveling roll according to its diameter, and then realize the required linear speed, so that those leveling rolls with out-of-tolerance diameters can be reused, reducing the number of spare parts;

[0023] (5) The present invention has a simple structure, is easy to use, has good transmission effect, strong practicability, low combined cost, has low requirements for the diameter size of the leveling roll, is safe and reliable during operation, and can be widely applied to the drive of 3-roll, 5-roll, 7-roll, 9-roll, 11-roll, 13-roll, 17-roll, 19-roll, 21-roll and 23-roll roller leveling machines. Brief Description of the Drawings

[0024] Figure 1 The overall structural schematic diagram of the independent drive component of the leveling roll of a roller leveling machine of the present invention;

[0025] Figure 2 The independent drive schematic diagram of the upper roll system of the independent drive component of the leveling roll of a roller leveling machine of the present invention;

[0026] Figure 3 The independent drive schematic diagram of the lower roll system of the independent drive component of the leveling roll of a roller leveling machine of the present invention;

[0027] Figure 4 The leveling roll arrangement schematic diagram of the independent drive component of the leveling roll of a roller leveling machine of the present invention;

[0028] Figure 5 of the present invention Figure 1Front view in the direction of A.

[0029] Explanation of reference numerals

[0030] 1. Upper roll system, 2. Lower roll system, 3. Strip steel, 4. Cardan shaft coupling, 5. Gear distribution box, 6. Coaxial reducer, 7. Speed-regulating motor;

[0031] 1-1. First leveling roll, 1-3. Third leveling roll, 1-5. Fifth leveling roll, 1-7. Seventh leveling roll, 1-9. Ninth leveling roll;

[0032] 2-2. Second leveling roll, 2-4. Fourth leveling roll, 2-6. Sixth leveling roll, 2-8. Eighth leveling roll, 2-10. Tenth leveling roll, 2-11. Eleventh leveling roll;

[0033] 6-1. First coaxial reducer, 6-2. Second coaxial reducer, 6-3. Third coaxial reducer, 6-4. Fourth coaxial reducer, 6-5. Fifth coaxial reducer, 6-6. Sixth coaxial reducer, 6-7. Seventh coaxial reducer, 6-8. Eighth coaxial reducer, 6-9. Ninth coaxial reducer, 6-10. Tenth coaxial reducer, 6-11. Eleventh coaxial reducer;

[0034] 7-1. First speed-regulating motor, 7-2. Second speed-regulating motor, 7-3. Third speed-regulating motor, 7-4. Fourth speed-regulating motor, 7-5. Fifth speed-regulating motor, 7-6. Sixth speed-regulating motor, 7-7. Seventh speed-regulating motor, 7-8. Eighth speed-regulating motor, 7-9. Ninth speed-regulating motor, 7-10. Tenth speed-regulating motor, 7-11. Eleventh speed-regulating motor. Detailed implementation manners

[0035] The following describes the specific implementation manners of the present invention in conjunction with embodiments:

[0036] It should be noted that the structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present invention. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention.

[0037] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present invention can implement.

[0038] Embodiment 1

[0039] As Figure 1 shown, the present invention discloses an independent drive assembly for the leveling rolls of a roller leveling machine, which includes an upper roll system 1, a lower roll system 2, a universal coupling 4, a gear distribution box 5, a coaxial reducer 6 and a speed regulating motor 7. Both the upper roll system 1 and the lower roll system 2 include a plurality of leveling rolls. The plurality of leveling rolls of the upper roll system 1 and the lower roll system 2 are respectively connected to one end of a plurality of universal couplings 4 in a one-to-one correspondence. The other ends of the plurality of universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to a plurality of coaxial reducers 6. The input ends of the plurality of coaxial reducers 6 are respectively connected to a plurality of speed regulating motors 7. The number of the coaxial reducers 6 and the speed regulating motors 7 is the same as the number of the universal couplings 4.

[0040] Embodiment 2

[0041] As Figure 1 shown, the present invention discloses an independent drive assembly for the leveling rolls of a roller leveling machine, which includes an upper roll system 1, a lower roll system 2, a universal coupling 4, a gear distribution box 5, a coaxial reducer 6 and a speed regulating motor 7. Both the upper roll system 1 and the lower roll system 2 include a plurality of leveling rolls. The plurality of leveling rolls of the upper roll system 1 and the lower roll system 2 are respectively connected to one end of a plurality of universal couplings 4 in a one-to-one correspondence. The other ends of the plurality of universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to a plurality of coaxial reducers 6. The input ends of the plurality of coaxial reducers 6 are respectively connected to a plurality of speed regulating motors 7. The number of the coaxial reducers 6 and the speed regulating motors 7 is the same as the number of the universal couplings 4.

[0042] Preferably, as Figures 1 to 4As shown, the upper roll system 1 includes a first leveling roll 1-1, a third leveling roll 1-3, a fifth leveling roll 1-5, a seventh leveling roll 1-7, and a ninth leveling roll 1-9. The first leveling roll 1-1, the third leveling roll 1-3, the fifth leveling roll 1-5, the seventh leveling roll 1-7, and the ninth leveling roll 1-9 are on the same straight line. The lower roll system 2 includes a second leveling roll 2-2, a fourth leveling roll 2-4, a sixth leveling roll 2-6, an eighth leveling roll 2-8, a tenth leveling roll 2-10, and an eleventh leveling roll 2-11. The second leveling roll 2-2, the fourth leveling roll 2-4, the sixth leveling roll 2-6, the eighth leveling roll 2-8, the tenth leveling roll 2-10, and the eleventh leveling roll 2-11 are on the same straight line. The straight lines where the two sets of leveling rolls of the upper roll system 1 and the lower roll system 2 are located are parallel. The output end of the gear distribution box 5 is connected to the first leveling roll 1-1, the second leveling roll 2-2, the third leveling roll 1-3, the fourth leveling roll 2-4, the fifth leveling roll 1-5, the sixth leveling roll 2-6, the seventh leveling roll 1-7, the eighth leveling roll 2-8, the ninth leveling roll 1-9, the tenth leveling roll 2-10, and the eleventh leveling roll 2-11 through 11 universal couplings 4 in one-to-one correspondence. The input end of the gear distribution box 5 is connected to 11 speed-regulating motors 7 through 11 coaxial speed reducers 6.

[0043] Embodiment 3

[0044] As Figure 1 As shown, the present invention discloses an independent drive assembly for leveling rolls of a roller leveling machine, including an upper roll system 1, a lower roll system 2, universal couplings 4, a gear distribution box 5, coaxial speed reducers 6, and speed-regulating motors 7. The upper roll system 1 and the lower roll system 2 both include multiple leveling rolls. One ends of multiple universal couplings 4 are respectively connected to the multiple leveling rolls of the upper roll system 1 and the lower roll system 2 in one-to-one correspondence. The other ends of the multiple universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to multiple coaxial speed reducers 6. The input ends of the multiple coaxial speed reducers 6 are respectively connected to multiple speed-regulating motors 7. The numbers of the coaxial speed reducers 6 and the speed-regulating motors 7 are the same as the number of the universal couplings 4.

[0045] Preferably, as Figures 1 to 4As shown, the upper roll system 1 includes a first leveling roll 1-1, a third leveling roll 1-3, a fifth leveling roll 1-5, a seventh leveling roll 1-7, and a ninth leveling roll 1-9. Among them, the first leveling roll 1-1, the third leveling roll 1-3, the fifth leveling roll 1-5, the seventh leveling roll 1-7, and the ninth leveling roll 1-9 are on the same straight line. The lower roll system 2 includes a second leveling roll 2-2, a fourth leveling roll 2-4, a sixth leveling roll 2-6, an eighth leveling roll 2-8, a tenth leveling roll 2-10, and an eleventh leveling roll 2-11. Among them, the second leveling roll 2-2, the fourth leveling roll 2-4, the sixth leveling roll 2-6, the eighth leveling roll 2-8, the tenth leveling roll 2-10, and the eleventh leveling roll 2-11 are on the same straight line. The straight lines where the two groups of leveling rolls of the upper roll system 1 and the lower roll system 2 are located are parallel. The output end of the gear distribution box 5 is connected to the first leveling roll 1-1, the second leveling roll 2-2, the third leveling roll 1-3, the fourth leveling roll 2-4, the fifth leveling roll 1-5, the sixth leveling roll 2-6, the seventh leveling roll 1-7, the eighth leveling roll 2-8, the ninth leveling roll 1-9, the tenth leveling roll 2-10, and the eleventh leveling roll 2-11 by 11 universal couplings 4 in one-to-one correspondence. The input end of the gear distribution box 5 is connected to 11 speed control motors 7 through 11 coaxial speed reducers 6.

[0046] Preferably, as Figures 1 to 3 shown, the end of the speed control motor 7 with a flange is connected to the input end of the coaxial speed reducer 6 with flanges at both ends by bolts and keys. The output end of the coaxial speed reducer 6 is connected to the input flange of the gear distribution box 5 by bolts and keys. The two ends of the universal coupling 4 are respectively connected to the output end of the gear distribution box 5 and the input end of the leveling roll through splines.

[0047] Preferably, as Figure 5As shown, the speed regulating motor 7 includes a first speed regulating motor 7-1, a second speed regulating motor 7-2, a third speed regulating motor 7-3, a fourth speed regulating motor 7-4, a fifth speed regulating motor 7-5, a sixth speed regulating motor 7-6, a seventh speed regulating motor 7-7, an eighth speed regulating motor 7-8, a ninth speed regulating motor 7-9, a tenth speed regulating motor 7-10, and an eleventh speed regulating motor 7-11. The coaxial speed reducer 6 includes a first coaxial speed reducer 6-1, a second coaxial speed reducer 6-2, a third coaxial speed reducer 6-3, a fourth coaxial speed reducer 6-4, a fifth coaxial speed reducer 6-5, a sixth coaxial speed reducer 6-6, a seventh coaxial speed reducer 6-7, an eighth coaxial speed reducer 6-8, a ninth coaxial speed reducer 6-9, a tenth coaxial speed reducer 6-10, and an eleventh coaxial speed reducer 6-11. One end of the first speed regulating motor 7-1 with a flange is connected to the first coaxial speed reducer 6-1 with flanges at both ends by bolts and keys. One end of the second speed regulating motor 7-2 with a flange is connected to the second coaxial speed reducer 6-2 with flanges at both ends by bolts and keys. One end of the third speed regulating motor 7-3 with a flange is connected to the third coaxial speed reducer 6-3 with flanges at both ends by bolts and keys. One end of the fourth speed regulating motor 7-4 with a flange is connected to the fourth coaxial speed reducer 6-4 with flanges at both ends by bolts and keys. One end of the fifth speed regulating motor 7-5 with a flange is connected to the fifth coaxial speed reducer 6-5 with flanges at both ends by bolts and keys. One end of the sixth speed regulating motor 7-6 with a flange is connected to the sixth coaxial speed reducer 6-6 with flanges at both ends by bolts and keys. One end of the seventh speed regulating motor 7-7 with a flange is connected to the seventh coaxial speed reducer 6-7 with flanges at both ends by bolts and keys. One end of the eighth speed regulating motor 7-8 with a flange is connected to the eighth coaxial speed reducer 6-8 with flanges at both ends by bolts and keys. One end of the ninth speed regulating motor 7-9 with a flange is connected to the ninth coaxial speed reducer 6-9 with flanges at both ends by bolts and keys. One end of the tenth speed regulating motor 7-10 with a flange is connected to the tenth coaxial speed reducer 6-10 with flanges at both ends by bolts and keys. One end of the eleventh speed regulating motor 7-11 with a flange is connected to the eleventh coaxial speed reducer 6-11 with flanges at both ends by bolts and keys.

[0048] Example 4

[0049] As Figure 1As shown, the present invention discloses an independent drive assembly for straightening rolls of a roller straightening machine, which includes an upper roll system 1, a lower roll system 2, a universal coupling 4, a gear distribution box 5, a coaxial speed reducer 6, and a speed regulating motor 7. The upper roll system 1 and the lower roll system 2 each include a plurality of straightening rolls. One end of a plurality of universal couplings 4 is respectively connected to each of the plurality of straightening rolls of the upper roll system 1 and the lower roll system 2 in a one-to-one correspondence. The other ends of the plurality of universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to a plurality of coaxial speed reducers 6. The input ends of the plurality of coaxial speed reducers 6 are respectively connected to a plurality of speed regulating motors 7. The number of the coaxial speed reducers 6 and the speed regulating motors 7 is the same as the number of the universal couplings 4.

[0050] Preferably, as Figures 1 to 4 shown, the upper roll system 1 includes a first straightening roll 1-1, a third straightening roll 1-3, a fifth straightening roll 1-5, a seventh straightening roll 1-7, and a ninth straightening roll 1-9. The first straightening roll 1-1, the third straightening roll 1-3, the fifth straightening roll 1-5, the seventh straightening roll 1-7, and the ninth straightening roll 1-9 are on the same straight line. The lower roll system 2 includes a second straightening roll 2-2, a fourth straightening roll 2-4, a sixth straightening roll 2-6, an eighth straightening roll 2-8, a tenth straightening roll 2-10, and an eleventh straightening roll 2-11. The second straightening roll 2-2, the fourth straightening roll 2-4, the sixth straightening roll 2-6, the eighth straightening roll 2-8, the tenth straightening roll 2-10, and the eleventh straightening roll 2-11 are on the same straight line. The straight lines where the two groups of straightening rolls of the upper roll system 1 and the lower roll system 2 are located are parallel. The output end of the gear distribution box 5 is connected to the first straightening roll 1-1, the second straightening roll 2-2, the third straightening roll 1-3, the fourth straightening roll 2-4, the fifth straightening roll 1-5, the sixth straightening roll 2-6, the seventh straightening roll 1-7, the eighth straightening roll 2-8, the ninth straightening roll 1-9, the tenth straightening roll 2-10, and the eleventh straightening roll 2-11 by 11 universal couplings 4 in a one-to-one correspondence. The input end of the gear distribution box 5 is connected to 11 speed regulating motors 7 through 11 coaxial speed reducers 6.

[0051] Preferably, as Figures 1 to 3 shown, the end of the speed regulating motor 7 with a flange is connected to the input end of the coaxial speed reducer 6 with flanges at both ends by bolts and keys. The output end of the coaxial speed reducer 6 is connected to the input flange of the gear distribution box 5 by bolts and keys. The two ends of the universal coupling 4 are respectively connected to the output end of the gear distribution box 5 and the input end of the straightening roll through splines.

[0052] Preferably, as Figure 5As shown, the speed-regulating motor 7 includes a first speed-regulating motor 7-1, a second speed-regulating motor 7-2, a third speed-regulating motor 7-3, a fourth speed-regulating motor 7-4, a fifth speed-regulating motor 7-5, a sixth speed-regulating motor 7-6, a seventh speed-regulating motor 7-7, an eighth speed-regulating motor 7-8, a ninth speed-regulating motor 7-9, a tenth speed-regulating motor 7-10, and an eleventh speed-regulating motor 7-11. The coaxial speed reducer 6 includes a first coaxial speed reducer 6-1, a second coaxial speed reducer 6-2, a third coaxial speed reducer 6-3, a fourth coaxial speed reducer 6-4, a fifth coaxial speed reducer 6-5, a sixth coaxial speed reducer 6-6, a seventh coaxial speed reducer 6-7, an eighth coaxial speed reducer 6-8, a ninth coaxial speed reducer 6-9, a tenth coaxial speed reducer 6-10, and an eleventh coaxial speed reducer 6-11. One end of the first speed-regulating motor 7-1 with a flange is connected to the first coaxial speed reducer 6-1 with flanges at both ends by bolts and keys. One end of the second speed-regulating motor 7-2 with a flange is connected to the second coaxial speed reducer 6-2 with flanges at both ends by bolts and keys. One end of the third speed-regulating motor 7-3 with a flange is connected to the third coaxial speed reducer 6-3 with flanges at both ends by bolts and keys. One end of the fourth speed-regulating motor 7-4 with a flange is connected to the fourth coaxial speed reducer 6-4 with flanges at both ends by bolts and keys. One end of the fifth speed-regulating motor 7-5 with a flange is connected to the fifth coaxial speed reducer 6-5 with flanges at both ends by bolts and keys. One end of the sixth speed-regulating motor 7-6 with a flange is connected to the sixth coaxial speed reducer 6-6 with flanges at both ends by bolts and keys. One end of the seventh speed-regulating motor 7-7 with a flange is connected to the seventh coaxial speed reducer 6-7 with flanges at both ends by bolts and keys. One end of the eighth speed-regulating motor 7-8 with a flange is connected to the eighth coaxial speed reducer 6-8 with flanges at both ends by bolts and keys. One end of the ninth speed-regulating motor 7-9 with a flange is connected to the ninth coaxial speed reducer 6-9 with flanges at both ends by bolts and keys. One end of the tenth speed-regulating motor 7-10 with a flange is connected to the tenth coaxial speed reducer 6-10 with flanges at both ends by bolts and keys. One end of the eleventh speed-regulating motor 7-11 with a flange is connected to the eleventh coaxial speed reducer 6-11 with flanges at both ends by bolts and keys.

[0053] Preferably, as Figure 5As shown, the fourth speed-regulating motor 7-4 / the fifth speed-regulating motor 7-5 / the tenth speed-regulating motor 7-10 are respectively connected to the fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10, and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other ends of the corresponding universal couplings 4 are respectively connected to the fourth straightening roller 2-4, the fifth straightening roller 1-5 and the tenth straightening roller 2-10. The fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10 are respectively coaxially connected to one end of the gear shaft 5-1, and the other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0054] Preferably, as Figure 5 As shown, the first speed-regulating motor 7-1 / the second speed-regulating motor 7-2 / the ninth speed-regulating motor 7-9 / the eleventh speed-regulating motor 7-11 are respectively connected to the first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11. The torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the first straightening roller 1-1, the second straightening roller 2-2, the ninth straightening roller 1-9 and the eleventh straightening roller 2-11. The first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11 are respectively coaxially connected to a gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1, and the other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0055] Preferably, as Figure 5 As shown, the third speed-regulating motor 7-3 / the sixth speed-regulating motor 7-6 / the seventh speed-regulating motor 7-7 / the eighth speed-regulating motor 7-8 are respectively connected to the third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8. The torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the third straightening roller 1-3, the sixth straightening roller 2-6, the seventh straightening roller 1-7 and the eighth straightening roller 2-8. The third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8 are respectively coaxially connected to a gear shaft 5-1. This gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence, and the other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0056] Example 5

[0057] As Figure 1As shown in the figure, the present invention discloses an independent drive assembly for the leveling rolls of a roller leveling machine, which includes an upper roll system 1, a lower roll system 2, a universal coupling 4, a gear distribution box 5, a coaxial reducer 6, and a speed regulating motor 7. The upper roll system 1 and the lower roll system 2 both include multiple leveling rolls. One end of each of the multiple leveling rolls in the upper roll system 1 and the lower roll system 2 is respectively and correspondingly connected to one end of multiple universal couplings 4. The other ends of the multiple universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to multiple coaxial reducers 6. The input ends of the multiple coaxial reducers 6 are respectively connected to multiple speed regulating motors 7. The number of the coaxial reducers 6 and the speed regulating motors 7 is the same as the number of the universal couplings 4.

[0058] Preferably, as Figures 1 to 4 shown, the upper roll system 1 includes a first leveling roll 1-1, a third leveling roll 1-3, a fifth leveling roll 1-5, a seventh leveling roll 1-7, and a ninth leveling roll 1-9. The first leveling roll 1-1, the third leveling roll 1-3, the fifth leveling roll 1-5, the seventh leveling roll 1-7, and the ninth leveling roll 1-9 are on the same straight line. The lower roll system 2 includes a second leveling roll 2-2, a fourth leveling roll 2-4, a sixth leveling roll 2-6, an eighth leveling roll 2-8, a tenth leveling roll 2-10, and an eleventh leveling roll 2-11. The second leveling roll 2-2, the fourth leveling roll 2-4, the sixth leveling roll 2-6, the eighth leveling roll 2-8, the tenth leveling roll 2-10, and the eleventh leveling roll 2-11 are on the same straight line. The straight lines where the two groups of leveling rolls in the upper roll system 1 and the lower roll system 2 are located are parallel. The output end of the gear distribution box 5 is connected to the first leveling roll 1-1, the second leveling roll 2-2, the third leveling roll 1-3, the fourth leveling roll 2-4, the fifth leveling roll 1-5, the sixth leveling roll 2-6, the seventh leveling roll 1-7, the eighth leveling roll 2-8, the ninth leveling roll 1-9, the tenth leveling roll 2-10, and the eleventh leveling roll 2-11 by 11 universal couplings 4 respectively and correspondingly. The input end of the gear distribution box 5 is connected to 11 speed regulating motors 7 through 11 coaxial reducers 6.

[0059] Preferably, as Figures 1 to 3 shown, the end of the speed regulating motor 7 with a flange is connected to the input end of the coaxial reducer 6 with flanges at both ends by bolts and keys. The output end of the coaxial reducer 6 is connected to the input flange of the gear distribution box 5 by bolts and keys. The two ends of the universal coupling 4 are respectively connected to the output end of the gear distribution box 5 and the input end of the leveling roll through splines.

[0060] Preferably, as Figure 5As shown, the speed-regulating motor 7 includes a first speed-regulating motor 7-1, a second speed-regulating motor 7-2, a third speed-regulating motor 7-3, a fourth speed-regulating motor 7-4, a fifth speed-regulating motor 7-5, a sixth speed-regulating motor 7-6, a seventh speed-regulating motor 7-7, an eighth speed-regulating motor 7-8, a ninth speed-regulating motor 7-9, a tenth speed-regulating motor 7-10, and an eleventh speed-regulating motor 7-11. The coaxial speed reducer 6 includes a first coaxial speed reducer 6-1, a second coaxial speed reducer 6-2, a third coaxial speed reducer 6-3, a fourth coaxial speed reducer 6-4, a fifth coaxial speed reducer 6-5, a sixth coaxial speed reducer 6-6, a seventh coaxial speed reducer 6-7, an eighth coaxial speed reducer 6-8, a ninth coaxial speed reducer 6-9, a tenth coaxial speed reducer 6-10, and an eleventh coaxial speed reducer 6-11. One end of the first speed-regulating motor 7-1 with a flange is connected to the first coaxial speed reducer 6-1 with flanges at both ends by bolts and keys. One end of the second speed-regulating motor 7-2 with a flange is connected to the second coaxial speed reducer 6-2 with flanges at both ends by bolts and keys. One end of the third speed-regulating motor 7-3 with a flange is connected to the third coaxial speed reducer 6-3 with flanges at both ends by bolts and keys. One end of the fourth speed-regulating motor 7-4 with a flange is connected to the fourth coaxial speed reducer 6-4 with flanges at both ends by bolts and keys. One end of the fifth speed-regulating motor 7-5 with a flange is connected to the fifth coaxial speed reducer 6-5 with flanges at both ends by bolts and keys. One end of the sixth speed-regulating motor 7-6 with a flange is connected to the sixth coaxial speed reducer 6-6 with flanges at both ends by bolts and keys. One end of the seventh speed-regulating motor 7-7 with a flange is connected to the seventh coaxial speed reducer 6-7 with flanges at both ends by bolts and keys. One end of the eighth speed-regulating motor 7-8 with a flange is connected to the eighth coaxial speed reducer 6-8 with flanges at both ends by bolts and keys. One end of the ninth speed-regulating motor 7-9 with a flange is connected to the ninth coaxial speed reducer 6-9 with flanges at both ends by bolts and keys. One end of the tenth speed-regulating motor 7-10 with a flange is connected to the tenth coaxial speed reducer 6-10 with flanges at both ends by bolts and keys. One end of the eleventh speed-regulating motor 7-11 with a flange is connected to the eleventh coaxial speed reducer 6-11 with flanges at both ends by bolts and keys.

[0061] Preferably, as Figure 5As shown, the fourth speed-regulating motor 7-4 / the fifth speed-regulating motor 7-5 / the tenth speed-regulating motor 7-10 are respectively connected to the fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10, and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other ends of the corresponding universal couplings 4 are respectively connected to the fourth straightening roller 2-4, the fifth straightening roller 1-5 and the tenth straightening roller 2-10. The fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10 are respectively coaxially connected to one end of the gear shaft 5-1, and the other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0062] Preferably, as Figure 5 shown, the first speed-regulating motor 7-1 / the second speed-regulating motor 7-2 / the ninth speed-regulating motor 7-9 / the eleventh speed-regulating motor 7-11 are respectively connected to the first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11, and the torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the first straightening roller 1-1, the second straightening roller 2-2, the ninth straightening roller 1-9 and the eleventh straightening roller 2-11. The first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11 are respectively coaxially connected to a gear shaft 5-1, and one end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1. The other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0063] Preferably, as Figure 5 shown, the third speed-regulating motor 7-3 / the sixth speed-regulating motor 7-6 / the seventh speed-regulating motor 7-7 / the eighth speed-regulating motor 7-8 are respectively connected to the third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8, and the torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the third straightening roller 1-3, the sixth straightening roller 2-6, the seventh straightening roller 1-7 and the eighth straightening roller 2-8. The third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8 are respectively coaxially connected to a gear shaft 5-1, and this gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence. The other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0064] Preferably, as Figure 5As shown in the figure, the first coaxial reducer 6-1, the second coaxial reducer 6-2, the third coaxial reducer 6-3, the fourth coaxial reducer 6-4, the fifth coaxial reducer 6-5, the sixth coaxial reducer 6-6, the seventh coaxial reducer 6-7, the eighth coaxial reducer 6-8, the ninth coaxial reducer 6-9, the tenth coaxial reducer 6-10 and the eleventh coaxial reducer 6-11 respectively transmit torque to the universal coupling 4 through the gear shaft 5-1 to drive each leveling roll. Among them, the 5 universal couplings 4 connected by the gear shaft 5-1 of the first coaxial reducer 6-1, the third coaxial reducer 6-3, the fifth coaxial reducer 6-5, the seventh coaxial reducer 6-7 and the ninth coaxial reducer 6-9 are on the same straight line. Among them, the 6 universal couplings 4 connected by the gear shaft 5-1 of the second coaxial reducer 6-2, the fourth coaxial reducer 6-4, the sixth coaxial reducer 6-6, the eighth coaxial reducer 6-8, the tenth coaxial reducer 6-10 and the eleventh coaxial reducer 6-11 are on the same straight line. Among them, the two groups of universal couplings 4 on the same straight line are parallel.

[0065] Embodiment 6

[0066] As Figure 1 shown, the present invention discloses an independent drive component for the leveling rolls of a roller leveling machine, including an upper roll system 1, a lower roll system 2, a universal coupling 4, a gear distribution box 5, a coaxial reducer 6 and a speed regulating motor 7. Among them, both the upper roll system 1 and the lower roll system 2 include a plurality of leveling rolls. The plurality of leveling rolls of the upper roll system 1 and the lower roll system 2 are respectively connected to one end of a plurality of universal couplings 4 in one-to-one correspondence. The other ends of the plurality of universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to a plurality of coaxial reducers 6. The input ends of the plurality of coaxial reducers 6 are respectively connected to a plurality of speed regulating motors 7. The number of the coaxial reducers 6 and the speed regulating motors 7 is the same as the number of the universal couplings 4.

[0067] Preferably, as Figures 1 to 4As shown, the upper roll system 1 includes a first leveling roll 1-1, a third leveling roll 1-3, a fifth leveling roll 1-5, a seventh leveling roll 1-7 and a ninth leveling roll 1-9. Among them, the first leveling roll 1-1, the third leveling roll 1-3, the fifth leveling roll 1-5, the seventh leveling roll 1-7 and the ninth leveling roll 1-9 are on the same straight line. The lower roll system 2 includes a second leveling roll 2-2, a fourth leveling roll 2-4, a sixth leveling roll 2-6, an eighth leveling roll 2-8, a tenth leveling roll 2-10 and an eleventh leveling roll 2-11. Among them, the second leveling roll 2-2, the fourth leveling roll 2-4, the sixth leveling roll 2-6, the eighth leveling roll 2-8, the tenth leveling roll 2-10 and the eleventh leveling roll 2-11 are on the same straight line. The straight lines where the two groups of leveling rolls of the upper roll system 1 and the lower roll system 2 are located are parallel. The output end of the gear distribution box 5 is connected to the first leveling roll 1-1, the second leveling roll 2-2, the third leveling roll 1-3, the fourth leveling roll 2-4, the fifth leveling roll 1-5, the sixth leveling roll 2-6, the seventh leveling roll 1-7, the eighth leveling roll 2-8, the ninth leveling roll 1-9, the tenth leveling roll 2-10 and the eleventh leveling roll 2-11 by 11 universal couplings 4 in one-to-one correspondence. The input end of the gear distribution box 5 is connected to 11 speed-regulating motors 7 through 11 coaxial speed reducers 6.

[0068] Preferably, as Figures 1 to 3 shown, the end of the speed-regulating motor 7 with a flange is connected to the input end of the coaxial speed reducer 6 with flanges at both ends by bolts and keys. The output end of the coaxial speed reducer 6 is connected to the input flange of the gear distribution box 5 by bolts and keys. The two ends of the universal coupling 4 are respectively connected to the output end of the gear distribution box 5 and the input end of the leveling roll through splines.

[0069] Preferably, as Figure 5As shown, the speed-regulating motor 7 includes a first speed-regulating motor 7-1, a second speed-regulating motor 7-2, a third speed-regulating motor 7-3, a fourth speed-regulating motor 7-4, a fifth speed-regulating motor 7-5, a sixth speed-regulating motor 7-6, a seventh speed-regulating motor 7-7, an eighth speed-regulating motor 7-8, a ninth speed-regulating motor 7-9, a tenth speed-regulating motor 7-10, and an eleventh speed-regulating motor 7-11. The coaxial speed reducer 6 includes a first coaxial speed reducer 6-1, a second coaxial speed reducer 6-2, a third coaxial speed reducer 6-3, a fourth coaxial speed reducer 6-4, a fifth coaxial speed reducer 6-5, a sixth coaxial speed reducer 6-6, a seventh coaxial speed reducer 6-7, an eighth coaxial speed reducer 6-8, a ninth coaxial speed reducer 6-9, a tenth coaxial speed reducer 6-10, and an eleventh coaxial speed reducer 6-11. One end of the first speed-regulating motor 7-1 with a flange is connected to the first coaxial speed reducer 6-1 with flanges at both ends by bolts and keys. One end of the second speed-regulating motor 7-2 with a flange is connected to the second coaxial speed reducer 6-2 with flanges at both ends by bolts and keys. One end of the third speed-regulating motor 7-3 with a flange is connected to the third coaxial speed reducer 6-3 with flanges at both ends by bolts and keys. One end of the fourth speed-regulating motor 7-4 with a flange is connected to the fourth coaxial speed reducer 6-4 with flanges at both ends by bolts and keys. One end of the fifth speed-regulating motor 7-5 with a flange is connected to the fifth coaxial speed reducer 6-5 with flanges at both ends by bolts and keys. One end of the sixth speed-regulating motor 7-6 with a flange is connected to the sixth coaxial speed reducer 6-6 with flanges at both ends by bolts and keys. One end of the seventh speed-regulating motor 7-7 with a flange is connected to the seventh coaxial speed reducer 6-7 with flanges at both ends by bolts and keys. One end of the eighth speed-regulating motor 7-8 with a flange is connected to the eighth coaxial speed reducer 6-8 with flanges at both ends by bolts and keys. One end of the ninth speed-regulating motor 7-9 with a flange is connected to the ninth coaxial speed reducer 6-9 with flanges at both ends by bolts and keys. One end of the tenth speed-regulating motor 7-10 with a flange is connected to the tenth coaxial speed reducer 6-10 with flanges at both ends by bolts and keys. One end of the eleventh speed-regulating motor 7-11 with a flange is connected to the eleventh coaxial speed reducer 6-11 with flanges at both ends by bolts and keys.

[0070] Preferably, as Figure 5As shown, the fourth speed-regulating motor 7-4 / the fifth speed-regulating motor 7-5 / the tenth speed-regulating motor 7-10 are respectively connected to the fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10, and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other ends of the corresponding universal couplings 4 are respectively connected to the fourth leveling roller 2-4, the fifth leveling roller 1-5, and the tenth leveling roller 2-10. The fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10 are respectively coaxially connected to one end of the gear shaft 5-1, and the other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0071] Preferably, as Figure 5 As shown, the first speed-regulating motor 7-1 / the second speed-regulating motor 7-2 / the ninth speed-regulating motor 7-9 / the eleventh speed-regulating motor 7-11 are respectively connected to the first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11. The torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the first leveling roller 1-1, the second leveling roller 2-2, the ninth leveling roller 1-9, and the eleventh leveling roller 2-11. The first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11 are respectively coaxially connected to a gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1, and the other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0072] Preferably, as Figure 5 As shown, the third speed-regulating motor 7-3 / the sixth speed-regulating motor 7-6 / the seventh speed-regulating motor 7-7 / the eighth speed-regulating motor 7-8 are respectively connected to the third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8. The torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the third leveling roller 1-3, the sixth leveling roller 2-6, the seventh leveling roller 1-7, and the eighth leveling roller 2-8. The third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8 are respectively coaxially connected to a gear shaft 5-1. This gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence, and the other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0073] Preferably, as Figure 5As shown in the figure, the first coaxial reducer 6-1, the second coaxial reducer 6-2, the third coaxial reducer 6-3, the fourth coaxial reducer 6-4, the fifth coaxial reducer 6-5, the sixth coaxial reducer 6-6, the seventh coaxial reducer 6-7, the eighth coaxial reducer 6-8, the ninth coaxial reducer 6-9, the tenth coaxial reducer 6-10 and the eleventh coaxial reducer 6-11 respectively transmit torque to the universal coupling 4 through the gear shaft 5-1 to drive each straightening roll. Among them, the 5 universal couplings 4 connected by the gear shaft 5-1 of the first coaxial reducer 6-1, the third coaxial reducer 6-3, the fifth coaxial reducer 6-5, the seventh coaxial reducer 6-7, and the ninth coaxial reducer 6-9 are on the same straight line. Among them, the 6 universal couplings 4 connected by the gear shaft 5-1 of the second coaxial reducer 6-2, the fourth coaxial reducer 6-4, the sixth coaxial reducer 6-6, the eighth coaxial reducer 6-8, the tenth coaxial reducer 6-10 and the eleventh coaxial reducer 6-11 are on the same straight line. Among them, the two groups of universal couplings 4 on the same straight line are parallel.

[0074] Preferably, the speed-regulating motor 7 is equipped with an incremental encoder with a high pulse number for accurately measuring the rotation speed of the straightening roll.

[0075] Embodiment 7

[0076] As Figure 1 As shown in the figure, the present invention discloses an independent drive assembly for the straightening rolls of a roller straightening machine, which includes an upper roll system 1, a lower roll system 2, a universal coupling 4, a gear distribution box 5, a coaxial reducer 6 and a speed-regulating motor 7. Among them, both the upper roll system 1 and the lower roll system 2 include a plurality of straightening rolls. The plurality of straightening rolls of the upper roll system 1 and the lower roll system 2 are respectively connected to one end of a plurality of universal couplings 4 in one-to-one correspondence. Among them, the other ends of the plurality of universal couplings 4 are respectively connected to the output end of the gear distribution box 5. The input end of the gear distribution box 5 is connected to a plurality of coaxial reducers 6. Among them, the input ends of the plurality of coaxial reducers 6 are respectively connected to a plurality of speed-regulating motors 7. Among them, the number of coaxial reducers 6 and speed-regulating motors 7 is the same as the number of universal couplings 4.

[0077] Preferably, as Figures 1 to 4As shown, the upper roll system 1 includes a first leveling roll 1-1, a third leveling roll 1-3, a fifth leveling roll 1-5, a seventh leveling roll 1-7 and a ninth leveling roll 1-9. The first leveling roll 1-1, the third leveling roll 1-3, the fifth leveling roll 1-5, the seventh leveling roll 1-7 and the ninth leveling roll 1-9 are on the same straight line. The lower roll system 2 includes a second leveling roll 2-2, a fourth leveling roll 2-4, a sixth leveling roll 2-6, an eighth leveling roll 2-8, a tenth leveling roll 2-10 and an eleventh leveling roll 2-11. The second leveling roll 2-2, the fourth leveling roll 2-4, the sixth leveling roll 2-6, the eighth leveling roll 2-8, the tenth leveling roll 2-10 and the eleventh leveling roll 2-11 are on the same straight line. The straight lines where the two groups of leveling rolls of the upper roll system 1 and the lower roll system 2 are located are parallel. The output end of the gear distribution box 5 is connected to the first leveling roll 1-1, the second leveling roll 2-2, the third leveling roll 1-3, the fourth leveling roll 2-4, the fifth leveling roll 1-5, the sixth leveling roll 2-6, the seventh leveling roll 1-7, the eighth leveling roll 2-8, the ninth leveling roll 1-9, the tenth leveling roll 2-10 and the eleventh leveling roll 2-11 by eleven universal couplings 4 in one-to-one correspondence. The input end of the gear distribution box 5 is connected to eleven speed regulating motors 7 through eleven coaxial speed reducers 6.

[0078] Preferably, as Figures 1 to 3 shown, the end of the speed regulating motor 7 with a flange is connected to the input end of the coaxial speed reducer 6 with flanges at both ends by bolts and keys. The output end of the coaxial speed reducer 6 is connected to the input end flange of the gear distribution box 5 by bolts and keys. The two ends of the universal coupling 4 are respectively connected to the output end of the gear distribution box 5 and the input end of the leveling roll through splines.

[0079] Preferably, as Figure 5As shown, the speed regulating motor 7 includes a first speed regulating motor 7-1, a second speed regulating motor 7-2, a third speed regulating motor 7-3, a fourth speed regulating motor 7-4, a fifth speed regulating motor 7-5, a sixth speed regulating motor 7-6, a seventh speed regulating motor 7-7, an eighth speed regulating motor 7-8, a ninth speed regulating motor 7-9, a tenth speed regulating motor 7-10 and an eleventh speed regulating motor 7-11. The coaxial reducer 6 includes a first coaxial reducer 6-1, a second coaxial reducer 6-2, a third coaxial reducer 6-3, a fourth coaxial reducer 6-4, a fifth coaxial reducer 6-5, a sixth coaxial reducer 6-6, a seventh coaxial reducer 6-7, an eighth coaxial reducer 6-8, a ninth coaxial reducer 6-9, a tenth coaxial reducer 6-10 and an eleventh coaxial reducer 6-11. One end of the first speed regulating motor 7-1 with a flange is connected to the first coaxial reducer 6-1 with flanges at both ends by bolts and keys. One end of the second speed regulating motor 7-2 with a flange is connected to the second coaxial reducer 6-2 with flanges at both ends by bolts and keys. One end of the third speed regulating motor 7-3 with a flange is connected to the third coaxial reducer 6-3 with flanges at both ends by bolts and keys. One end of the fourth speed regulating motor 7-4 with a flange is connected to the fourth coaxial reducer 6-4 with flanges at both ends by bolts and keys. One end of the fifth speed regulating motor 7-5 with a flange is connected to the fifth coaxial reducer 6-5 with flanges at both ends by bolts and keys. One end of the sixth speed regulating motor 7-6 with a flange is connected to the sixth coaxial reducer 6-6 with flanges at both ends by bolts and keys. One end of the seventh speed regulating motor 7-7 with a flange is connected to the seventh coaxial reducer 6-7 with flanges at both ends by bolts and keys. One end of the eighth speed regulating motor 7-8 with a flange is connected to the eighth coaxial reducer 6-8 with flanges at both ends by bolts and keys. One end of the ninth speed regulating motor 7-9 with a flange is connected to the ninth coaxial reducer 6-9 with flanges at both ends by bolts and keys. One end of the tenth speed regulating motor 7-10 with a flange is connected to the tenth coaxial reducer 6-10 with flanges at both ends by bolts and keys. One end of the eleventh speed regulating motor 7-11 with a flange is connected to the eleventh coaxial reducer 6-11 with flanges at both ends by bolts and keys.

[0080] Preferably, as Figure 5As shown, the fourth speed-regulating motor 7-4 / the fifth speed-regulating motor 7-5 / the tenth speed-regulating motor 7-10 are respectively connected to the fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10, and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other ends of the corresponding universal couplings 4 are respectively connected to the fourth leveling roll 2-4, the fifth leveling roll 1-5, and the tenth leveling roll 2-10. The fourth coaxial reducer 6-4 / the fifth coaxial reducer 6-5 / the tenth coaxial reducer 6-10 are respectively coaxially connected to one end of the gear shaft 5-1. The other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0081] Specifically:

[0082] The fourth speed-regulating motor 7-4 is connected to the fourth coaxial reducer 6-4 and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other end of the corresponding universal coupling 4 is connected to the fourth leveling roll 2-4. The fourth coaxial reducer 6-4 is coaxially connected to one end of the gear shaft 5-1. The other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0083] The fifth speed-regulating motor 7-5 is connected to the fifth coaxial reducer 6-5 and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other end of the corresponding universal coupling 4 is connected to the fifth leveling roll 1-5. The fifth coaxial reducer 6-5 is coaxially connected to one end of the gear shaft 5-1. The other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0084] The tenth speed-regulating motor 7-10 is connected to the tenth coaxial reducer 6-10 and then connected to the corresponding universal coupling 4 through a gear shaft 5-1 in the gear distribution box 5. The other end of the corresponding universal coupling 4 is connected to the tenth leveling roll 2-10. The tenth coaxial reducer 6-10 is coaxially connected to one end of the gear shaft 5-1. The other end of the gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0085] Preferably, as Figure 5As shown, the first speed-regulating motor 7-1 / the second speed-regulating motor 7-2 / the ninth speed-regulating motor 7-9 / the eleventh speed-regulating motor 7-11 are respectively connected to the first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively connected to the first straightening roll 1-1, the second straightening roll 2-2, the ninth straightening roll 1-9 and the eleventh straightening roll 2-11. The first coaxial reducer 6-1 / the second coaxial reducer 6-2 / the ninth coaxial reducer 6-9 / the eleventh coaxial reducer 6-11 are respectively coaxially connected to a gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1. The other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0086] Specifically:

[0087] The first speed-regulating motor 7-1 is connected to the first coaxial reducer 6-1. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the first straightening roll 1-1. The first coaxial reducer 6-1 is coaxially connected to a gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1. The other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0088] The second speed-regulating motor 7-2 is connected to the second coaxial reducer 6-2. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the second straightening roll 2-2. The second coaxial reducer 6-2 is coaxially connected to a gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1. The other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0089] The ninth speed-regulating motor 7-9 is connected to the ninth coaxial reducer 6-9. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the ninth straightening roll 1-9. The ninth coaxial reducer 6-9 is coaxially connected to a gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1. The other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0090] The eleventh speed-regulating motor 7-11 is connected to the eleventh coaxial reducer 6-11. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of two gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the ninth straightening roll 2-11. The eleventh coaxial reducer 6-11 is coaxially connected to one gear shaft 5-1. One end of this gear shaft 5-1 meshes with one end of another gear shaft 5-1. The other end of the other gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0091] Preferably, as Figure 5 shown, the third speed-regulating motor 7-3 / the sixth speed-regulating motor 7-6 / the seventh speed-regulating motor 7-7 / the eighth speed-regulating motor 7-8 are respectively connected to the third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other ends of the corresponding universal couplings 4 are respectively correspondingly connected to the third straightening roll 1-3, the sixth straightening roll 2-6, the seventh straightening roll 1-7, and the eighth straightening roll 2-8. The third coaxial reducer 6-3 / the sixth coaxial reducer 6-6 / the seventh coaxial reducer 6-7 / the eighth coaxial reducer 6-8 are respectively coaxially connected to one gear shaft 5-1. One end of this gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence. The other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0092] Specifically:

[0093] The third speed-regulating motor 7-3 is connected to the third coaxial reducer 6-3. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the third straightening roll 1-3. The third coaxial reducer 6-3 is coaxially connected to one gear shaft 5-1. One end of this gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence. The other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0094] The sixth speed-regulating motor 7-6 is connected to the sixth coaxial reducer 6-6. Torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the sixth straightening roll 2-6. The sixth coaxial reducer 6-6 is coaxially connected to one gear shaft 5-1. One end of this gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence. The other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0095] The seventh speed-regulating motor 7-7 is connected to the seventh coaxial reducer 6-7, and the torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the seventh straightening roll 1-7. The seventh coaxial reducer 6-7 is coaxially connected to a gear shaft 5-1. This gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence. The other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4;

[0096] The eighth speed-regulating motor 7-8 is connected to the eighth coaxial reducer 6-8, and the torque is indirectly transmitted to the corresponding universal coupling 4 through the linkage of three gear shafts 5-1. The other end of the corresponding universal coupling 4 is correspondingly connected to the eighth straightening roll 2-8. The eighth coaxial reducer 6-8 is coaxially connected to a gear shaft 5-1. This gear shaft 5-1 meshes with the other two gear shafts 5-1 in sequence. The other end of the third gear shaft 5-1 is coaxially connected to the universal coupling 4.

[0097] Preferably, as Figure 5 shown, the first coaxial reducer 6-1, the second coaxial reducer 6-2, the third coaxial reducer 6-3, the fourth coaxial reducer 6-4, the fifth coaxial reducer 6-5, the sixth coaxial reducer 6-6, the seventh coaxial reducer 6-7, the eighth coaxial reducer 6-8, the ninth coaxial reducer 6-9, the tenth coaxial reducer 6-10 and the eleventh coaxial reducer 6-11 respectively transmit the torque to the universal coupling 4 through the gear shaft 5-1 and then drive each straightening roll. The 5 universal couplings 4 connected by the gear shaft 5-1 of the first coaxial reducer 6-1, the third coaxial reducer 6-3, the fifth coaxial reducer 6-5, the seventh coaxial reducer 6-7, and the ninth coaxial reducer 6-9 are on the same straight line. The 6 universal couplings 4 connected by the gear shaft 5-1 of the second coaxial reducer 6-2, the fourth coaxial reducer 6-4, the sixth coaxial reducer 6-6, the eighth coaxial reducer 6-8, the tenth coaxial reducer 6-10 and the eleventh coaxial reducer 6-11 are on the same straight line. The two groups of universal couplings 4 on the same straight line are parallel.

[0098] Preferably, a high-pulse incremental encoder is provided on the speed-regulating motor 7 for accurately measuring the rotational speed of the straightening roll.

[0099] Preferably, a straightening roll independent drive assembly and drive method of a roll-type straightening machine as described in any one of the above includes the following steps:

[0100] Step 1) connecting 11 straightening rollers to one end of 11 universal couplings 4, wherein the other ends of the 11 universal couplings 4 are respectively connected to the output end of a gear distribution box 5, the input end of the gear distribution box 5 is connected to 11 coaxial reducers 6, wherein the input ends of the 11 coaxial reducers 6 are respectively connected to 11 speed regulating motors 7, and the 11 straightening rollers are independently connected through the 11 speed regulating motors 7, wherein the speed of each straightening roller can be independently adjusted;

[0101] Step 2) The steel strip 3 is placed between the upper roller system 1 and the lower roller system 2. The upper roller system 1 and the lower roller system 2 drag the steel strip 3 through the roll gap formed by 11 straightening rollers in sequence, which significantly improves the strip shape and fully releases the internal residual stress. The thickness of the steel strip 3 is 3.0mm to 25mm.

[0102] Step 3) When the steel strip 3 is stretched, the actual required rotation speed of each straightening roller is different. The speed adjustment motor 7 adjusts the speed difference of the straightening rollers, thereby eliminating the influence of negative torque.

[0103] Step 4) When the diameter of the straightening roller becomes smaller due to wear, the speed of the speed regulating motor 7 can be adjusted to perform individual adjustment of the worn straightening roller.

[0104] The straightening roller, coaxial reducer, speed regulating motor and universal coupling are all existing technologies.

[0105] The working principle of the present invention is as follows:

[0106] like Figures 1 to 5 As shown, the present invention includes an upper roller system 1, a lower roller system 2, a universal coupling 4, a gear distribution box 5, a coaxial reducer 6 and a speed regulating motor 7. The upper roller system 1 and the lower roller system 2 each include a plurality of straightening rollers. The plurality of straightening rollers of the upper roller system 1 and the lower roller system 2 are respectively connected to one end of a plurality of universal couplings 4 in a one-to-one correspondence, wherein the other ends of the plurality of universal couplings 4 are respectively connected to the output end of the gear distribution box 5, the input end of the gear distribution box 5 is connected to a plurality of coaxial reducers 6, and the input ends of the plurality of coaxial reducers 6 are respectively connected to a plurality of speed regulating motors 7, wherein the number of the coaxial reducers 6 and the speed regulating motor 7 is the same as that of the lower roller system 1. The number of universal couplings 4 is the same. The present invention is composed of a speed regulating motor 7, a coaxial reducer 6 and a universal coupling 4, which are equal to the number of straightening rollers, and a gear distribution box 5. Each straightening roller is driven individually by an independent speed regulating motor 7 via the coaxial reducer 6 and the gear distribution box 5. The speed of each straightening roller can be adjusted independently, and the speeds can be the same or different. It is possible to adjust the speeds of the straightening rollers differently, thereby eliminating the influence of negative torque. When the diameter of the straightening roller becomes smaller due to wear, the speed of the speed regulating motor 7 can be adjusted to make individual adjustments to the worn straightening rollers.

[0107] Each straightening roll of the present invention is driven by an independent speed-regulating motor 7, enabling independent adjustment of the rotational speed of each straightening roll. When the roll-type straightening machine straightens the strip steel 3 or steel plate, since the strip steel 3 is stretched, the actual required rotational speeds of each straightening roll are different. The present invention can achieve different rotational speeds of the straightening rolls, thereby eliminating the influence of negative torque.

[0108] When the roll-type straightening machine is in use, if a traditional transmission scheme is adopted, when the diameter of the straightening roll becomes smaller due to wear, since the rotational speed of each straightening roll cannot be adjusted individually, it cannot be used or major defects will occur during use. However, the present invention can overcome this drawback and reduce the number of spare parts.

[0109] The speed-regulating motor and the coaxial speed reducer of the present invention are directly or indirectly installed on the gear distribution box, with a compact structure and space saving; there are three torque transmission forms of the gear distribution box of the present invention: direct transmission, indirect transmission through two gear shafts, and indirect transmission through three gear shafts. In this way, the universal couplings connected to the upper roll system are in the same straight line, the universal couplings connected to the lower roll system are in the same straight line, and the two straight lines are parallel; the present invention can reduce the number of straightening roll spare parts and reduce noise, without causing energy waste, and the speed-regulating motors are all equipped with high-pulse incremental encoders for accurately measuring the rotational speed of the straightening rolls; the present invention is mainly used to drive roll-type straightening machines for straightening strip steel with a thickness of 3.0 mm to 25 mm and a speed of 30 meters per minute to 200 meters per minute.

[0110] The present invention has a simple structure, is easy to use, has good transmission effect, strong practicability, low combined cost, has low requirements for the diameter size of the straightening roll, is safe and reliable during operation, and can be widely applied to the transmission of 3-roll, 5-roll, 7-roll, 9-roll, 11-roll, 13-roll, 17-roll, 19-roll, 21-roll and 23-roll roll-type straightening machines.

[0111] The difficulty of the independent drive of the existing roll-type straightening machine is limited space. The speed reducer, motor and universal coupling must be arranged in a limited space, and the space angle of the universal coupling cannot exceed its allowable range. The biggest innovation point of the present invention is to use a gear distribution box as a transition to connect the universal coupling, speed reducer and motor one by one, truly realizing one motor driving one straightening roll. The advantage of this design is a compact structure, space saving, easy arrangement, which not only meets the requirements of independent drive but also saves space.

[0112] The independent drive of the leveling rolls in the present invention overcomes the negative torque generated during the leveling process. When the strip is leveled, it will elongate along its running direction, which requires the rotational speed of the leveling rolls to gradually increase from the inlet to the outlet. If the rotational speed of the leveling rolls remains constant, a negative torque will be generated at the elongated part of the strip, that is, the elongation of the strip requires an increase in the rotational speed of the leveling rolls, while the actual rotational speed of the leveling rolls remains unchanged, resulting in the leveling rolls being subjected to such a negative torque. The negative torque will cause disadvantages such as high noise during the leveling process, waste of energy, and scratching of the strip surface, while the independent drive can overcome this disadvantage.

[0113] The independent drive of the leveling rolls in the present invention reduces the requirements for the diameter size of the leveling rolls, thereby reducing the number of spare parts. If it is a collective drive, the diameter of the leveling rolls should be controlled within a certain tolerance range. After some working rolls are used for a period of time, the diameter tolerance exceeds the range and they cannot be used and can only be scrapped. The independent drive can independently adjust the rotational speed of the leveling rolls according to their diameters, thereby achieving the required linear speed, so that those leveling rolls with out-of-tolerance diameters can be reused, reducing the number of spare parts.

[0114] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art, various changes can also be made without departing from the gist of the present invention.

[0115] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to a specific embodiment, and the scope of the present invention is defined by the appended claims.

Claims

1. A roller straightening machine straightening roller independent transmission assembly, characterized by: The invention comprises an upper roller system (1), a lower roller system (2), a universal coupling (4), a gear distribution box (5), a coaxial reducer (6) and a speed regulating motor (7), wherein the upper roller system (1) and the lower roller system (2) each comprise a plurality of straightening rollers, the plurality of straightening rollers of the upper roller system (1) and the lower roller system (2) are respectively connected to one end of a plurality of universal couplings (4) in a one-to-one correspondence, wherein the other ends of the plurality of universal couplings (4) are respectively connected to the output end of the gear distribution box (5), the input end of the gear distribution box (5) is connected to a plurality of coaxial reducers (6), wherein the input ends of the plurality of coaxial reducers (6) are respectively connected to a plurality of speed regulating motors (7). , wherein the number of coaxial reducers (6) and speed regulating motors (7) is the same as the number of universal joints (4); the plurality of straightening rollers of the upper roller system (1) are in the same straight line, the plurality of straightening rollers of the lower roller system (2) are in the same straight line, and the straight lines of the two groups of straightening rollers of the upper roller system (1) and the lower roller system (2) are parallel; the strip steel (3) is placed between the upper roller system (1) and the lower roller system (2), and the rotation speed of the straightening rollers in the upper roller system (1) and the lower roller system (2) gradually increases from the inlet to the outlet of the strip steel (3); the upper roller system (1) includes a first straightening roller (1-1), a third straightening roller (1-3), a fifth straightening roller ( 1-5), the seventh straightening roller (1-7) and the ninth straightening roller (1-9); the lower roller system (2) includes a second straightening roller (2-2), a fourth straightening roller (2-4), a sixth straightening roller (2-6), an eighth straightening roller (2-8), a tenth straightening roller (2-10) and an eleventh straightening roller (2-11) arranged in sequence; the speed regulating motor (7) includes a first speed regulating motor (7-1), a second speed regulating motor (7-2), a third speed regulating motor (7-3), a fourth speed regulating motor (7-4), a fifth speed regulating motor (7-5), a sixth speed regulating motor (7-6), a seventh speed regulating motor (7-7), a an eighth speed regulating motor (7-8), a ninth speed regulating motor (7-9), a tenth speed regulating motor (7-10) and an eleventh speed regulating motor (7-11), wherein the coaxial reducer (6) comprises a first coaxial reducer (6-1), a second coaxial reducer (6-2), a third coaxial reducer (6-3), a fourth coaxial reducer (6-4), a fifth coaxial reducer (6-5), a sixth coaxial reducer (6-6), a seventh coaxial reducer (6-7), an eighth coaxial reducer (6-8), a ninth coaxial reducer (6-9), a tenth coaxial reducer (6-10) and an eleventh coaxial reducer (6-11);The fourth speed regulating motor (7-4) / the fifth speed regulating motor (7-5) / the tenth speed regulating motor (7-10) are respectively connected to the fourth coaxial reducer (6-4) / the fifth coaxial reducer (6-5) / the tenth coaxial reducer (6-10), and then connected to the corresponding universal coupling (4) through a gear shaft (5-1) in the gear distribution box (5), wherein the other end of the corresponding universal coupling (4) is respectively connected to the fourth straightening roller (2-4), the fifth straightening roller (1-5) and the tenth straightening roller (2-10), and the fourth coaxial reducer (6-4) / the fifth coaxial reducer (6-5) / the tenth coaxial reducer (6-10) are respectively coaxially connected to one end of the gear shaft (5-1). , wherein the other end of the gear shaft (5-1) is coaxially connected to the universal coupling (4); the first speed regulating motor (7-1) / the second speed regulating motor (7-2) / the ninth speed regulating motor (7-9) / the eleventh speed regulating motor (7-11) are respectively connected to the first coaxial reducer (6-1) / the second coaxial reducer (6-2) / the ninth coaxial reducer (6-9) / the eleventh coaxial reducer (6-11) to indirectly transmit the torque to the corresponding universal coupling (4) through the linkage of the two gear shafts (5-1), wherein the other end of the corresponding universal coupling (4) is respectively connected to the first straightening roller (1-1), the second straightening roller (2-2), the ninth straightening roller (1-9) and the eleventh straightening roller (2-1 1), wherein the first coaxial reducer (6-1) / the second coaxial reducer (6-2) / the ninth coaxial reducer (6-9) / the eleventh coaxial reducer (6-11) are respectively coaxially connected to a gear shaft (5-1), wherein the gear shaft (5-1) is meshed with one end of another gear shaft (5-1), wherein the other end of the other gear shaft (5-1) is coaxially connected to a universal coupling (4); the third speed regulating motor (7-3) / the sixth speed regulating motor (7-6) / the seventh speed regulating motor (7-7) / the eighth speed regulating motor (7-8) are respectively connected to the third coaxial reducer (6-3) / the sixth coaxial reducer (6-6) / the seventh coaxial reducer (6-7) / the eighth coaxial reducer (6-8) indirectly transmits torque to the corresponding universal coupling (4) through the linkage of three gear shafts (5-1), wherein the other ends of the corresponding universal couplings (4) are respectively connected to the third straightening roller (1-3), the sixth straightening roller (2-6), the seventh straightening roller (1-7) and the eighth straightening roller (2-8), wherein the third coaxial reducer (6-3) / the sixth coaxial reducer (6-6) / the seventh coaxial reducer (6-7) / the eighth coaxial reducer (6-8) are respectively coaxially connected to a gear shaft (5-1), wherein the gear shaft (5-1) is meshed with the other two gear shafts (5-1) in sequence, wherein the other end of the third gear shaft (5-1) is coaxially connected to the universal coupling (4). ; 2. The straightening roller independent transmission assembly of a roller straightening machine according to claim 1, characterized in that: The speed regulating motor (7) is provided with a flange at one end thereof, which is connected to the input end of a coaxial reducer (6) having flanges at both ends thereof by bolts and keys, wherein the output end of the coaxial reducer (6) is connected to the input end flange of the gear distribution box (5) by bolts and keys, wherein the two ends of the universal coupling (4) are respectively connected to the output end of the gear distribution box (5) and the input end of the straightening roller by splines.

3. The straightening roller independent transmission assembly of a roller straightening machine according to claim 1, characterized in that: The first speed regulating motor (7-1) is provided with a flange at one end connected to the first coaxial reducer (6-1) with flanges at both ends by bolts and keys, wherein the second speed regulating motor (7-2) is provided with a flange at one end connected to the second coaxial reducer (6-2) with flanges at both ends by bolts and keys, wherein the third speed regulating motor (7-3) is provided with a flange at one end connected to the third coaxial reducer (6-3) with flanges at both ends by bolts and keys, wherein the fourth speed regulating motor (7-4) is provided with a flange at one end connected to the fourth coaxial reducer (6-4) with flanges at both ends by bolts and keys, wherein the fifth speed regulating motor (7-5) is provided with a flange at one end connected to the fifth coaxial reducer (6-5) with flanges at both ends by bolts and keys, wherein the sixth speed regulating motor (7-6) is provided with a flange at one end connected to the The sixth coaxial reducer (6-6) with flanges at both ends is connected, wherein the seventh speed regulating motor (7-7) is provided with a flange at one end and is connected to the seventh coaxial reducer (6-7) with flanges at both ends by bolts and keys, wherein the eighth speed regulating motor (7-8) is provided with a flange at one end and is connected to the eighth coaxial reducer (6-8) with flanges at both ends by bolts and keys, wherein the ninth speed regulating motor (7-9) is provided with a flange at one end and is connected to the ninth coaxial reducer (6-9) with flanges at both ends by bolts and keys, wherein the tenth speed regulating motor (7-10) is provided with a flange at one end and is connected to the tenth coaxial reducer (6-10) with flanges at both ends by bolts and keys, wherein the eleventh speed regulating motor (7-11) is provided with a flange at one end and is connected to the eleventh coaxial reducer (6-11) with flanges at both ends by bolts and keys.

4. The straightening roller independent transmission assembly of a roller straightening machine according to claim 3, characterized in that: The five universal couplings (4) connected to the first coaxial reducer (6-1), the third coaxial reducer (6-3), the fifth coaxial reducer (6-5), the seventh coaxial reducer (6-7), and the ninth coaxial reducer (6-9) via the gear shaft (5-1) are located in the same straight line, wherein the six universal couplings (4) connected to the second coaxial reducer (6-2), the fourth coaxial reducer (6-4), the sixth coaxial reducer (6-6), the eighth coaxial reducer (6-8), the tenth coaxial reducer (6-10), and the eleventh coaxial reducer (6-11) via the gear shaft (5-1) are located in the same straight line, wherein two groups of universal couplings (4) located in the same straight line are parallel.

5. The straightening roller independent transmission assembly of a roller straightening machine according to claim 1, characterized in that: The speed regulating motor (7) is provided with an incremental encoder with a high pulse number for accurately measuring the rotation speed of the straightening roller.

6. A transmission method for the independent transmission assembly of the straightening roller of a roller straightening machine according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1) connecting 11 straightening rollers to one end of 11 universal couplings (4), wherein the other ends of the 11 universal couplings (4) are respectively connected to the output end of the gear distribution box (5), the input end of the gear distribution box (5) is connected to 11 coaxial reducers (6), wherein the input ends of the 11 coaxial reducers (6) are respectively connected to 11 speed regulating motors (7), and the 11 straightening rollers are independently connected through the 11 speed regulating motors (7), wherein the speed of each straightening roller can be independently adjusted; Step 2) placing the steel strip (3) between the upper roller system (1) and the lower roller system (2), and the upper roller system (1) and the lower roller system (2) drag the steel strip (3) through the roller gap formed by 11 straightening rollers in sequence, which will significantly improve the plate shape of the steel strip (3) and fully release the internal residual stress, wherein the thickness of the steel strip (3) is 3.0 mm to 25 mm; Step 3) When the steel strip (3) is stretched, the actual required rotation speed of each straightening roller is different. The speed regulating motor (7) is used to adjust the speed difference of the straightening rollers, thereby eliminating the influence of the negative torque. Step 4) When the diameter of the straightening roller becomes smaller due to wear, the speed of the speed regulating motor (7) can be adjusted to perform a separate adjustment of the worn straightening roller.

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